Oil drain pan



FIG. 1 is a perspective view of an oil drain pan;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a first side elevation view thereof;

FIG. 5 is a second side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings depict unclaimed environmental subject matter. 

CLAIM The ornamental design for an oil drain pan, as shown and described. 